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KR920002309A - Manufacturing method of flexible louvered plastic film - Google Patents

Manufacturing method of flexible louvered plastic film Download PDF

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Publication number
KR920002309A
KR920002309A KR1019910011663A KR910011663A KR920002309A KR 920002309 A KR920002309 A KR 920002309A KR 1019910011663 A KR1019910011663 A KR 1019910011663A KR 910011663 A KR910011663 A KR 910011663A KR 920002309 A KR920002309 A KR 920002309A
Authority
KR
South Korea
Prior art keywords
transparent
layers
layer
plastic film
relatively high
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
KR1019910011663A
Other languages
Korean (ko)
Inventor
린 크레운 론다
돈 니스트롬 알란
Original Assignee
찰톤 헨리 디에츠
미네소타 마이닝 앤드 매뉴팩츄어링 컴패니
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 찰톤 헨리 디에츠, 미네소타 마이닝 앤드 매뉴팩츄어링 컴패니 filed Critical 찰톤 헨리 디에츠
Publication of KR920002309A publication Critical patent/KR920002309A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D7/00—Producing flat articles, e.g. films or sheets
    • B29D7/01—Films or sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/305—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets
    • B29C48/307—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets specially adapted for bringing together components, e.g. melts within the die
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C71/00—After-treatment of articles without altering their shape; Apparatus therefor
    • B29C71/02—Thermal after-treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2001/00—Use of cellulose, modified cellulose or cellulose derivatives, e.g. viscose, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2001/00—Use of cellulose, modified cellulose or cellulose derivatives, e.g. viscose, as moulding material
    • B29K2001/08—Cellulose derivatives
    • B29K2001/12—Cellulose acetate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2101/00—Use of unspecified macromolecular compounds as moulding material
    • B29K2101/12—Thermoplastic materials

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Laminated Bodies (AREA)

Abstract

내용 없음No content

Description

가요성 루우버(louvered) 플라스틱 필름의 제조방법Manufacturing method of flexible louvered plastic film

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 원통형 빌릿(billet)으로 형성될 수 있는 적층물의 제조장치를 보여준다.1 shows an apparatus for producing a laminate, which may be formed into a cylindrical billet.

제2도는 상기 원통형(cylindrical) 빌릿을 벗겨내어 얻은 웨브(web)를 뜨거운 캔 사이에 통과시켜 웨브의 넓은 표면을 융해시키는 장치를 보여준다.2 shows an apparatus for melting a large surface of a web by passing a web obtained by stripping the cylindrical billet between hot cans.

제3도는 제2도에 대한 선택적인 장치를 보여준다.3 shows an alternative arrangement for FIG. 2.

Claims (10)

하기 (a) 내지 (d) 단계를 포함하는 가요성 루우버 플라스틱 필름을 제조하는 방법, (a) 광학농도가 상대적으로 높은층과 낮은 층이 교대로 된 다수의 열가소성 수지층들을 공압출성형하는 단계, (b) 상기 공압출성형된 층들을 각 층들이 교차되어 있는 원통형 표면을 가진 빌릿으로 형성시키는 단계, (c) 상대적으로 높은 광학 농도를 가진 다수의 미세 루우버들을 삽입시킨 얇고 투명한 필름을 제조하기 위해 상기 원통형 표면에서 상기 빌릿을 벗겨내는 단계 및, (d) 그 필름 표면을 융해하여, 그 표면들을 광학적으로 정화시키는 단계.A method of manufacturing a flexible louver plastic film comprising the following steps (a) to (d), and (a) coextrusion molding a plurality of thermoplastic resin layers in which alternating layers having a relatively high optical density are alternated. (B) forming the coextruded layers into billets having a cylindrical surface where each layer intersects, and (c) a thin, transparent film incorporating a plurality of fine louvers having a relatively high optical density. Stripping said billet from said cylindrical surface for manufacture, and (d) melting said film surface to optically clean said surfaces. 제1항에 있어서, 상기 모든 층들이 동일한 열가소성 수지를 포함하는 방법.The method of claim 1 wherein all of the layers comprise the same thermoplastic resin. 제2항에 있어서, 상기 동일한 열가소성 수지가 셀룰로오즈 아세테이트 부티레이트인 방법.The method of claim 2, wherein the same thermoplastic resin is cellulose acetate butyrate. 제1항에 있어서, 단계(a)에서 공압출성형된 층으로서, 낮은 광학 농도를 가진 층들은 투명하며, 상대적으로 높은 광학 농도를 가진 층은 유색인 방법.The method of claim 1 wherein the coextruded layer in step (a), wherein the layers with low optical concentrations are transparent and the layers with relatively high optical concentrations are colored. 제4항에 있어서, 상기 투명한 층의 두께가 상기 유색층 두께의 5 내지 20배인 방법.The method of claim 4, wherein the thickness of the transparent layer is 5-20 times the thickness of the colored layer. 제5항에 있어서, 상기 투명한 층이 50 내지 300㎛의 균일한 두께를 갖는 방법.The method of claim 5, wherein the transparent layer has a uniform thickness of 50 to 300 μm. 제5항에 있어서, 상기 유색층이 5 내지 20㎛의 균일한 두께를 갖는 방법.The method of claim 5, wherein the colored layer has a uniform thickness of 5 to 20 mu m. 제4항에 있어서, 상기 튜명한 층 및 유색층을 단계(a)에서 쌍으로 압출 성형시키고, 단계(b)는 상기 빌릿을 형성시키기 위해 다수의 쌍들을 트리밍하고 융해하는 것을 포함하는 방법.5. The method of claim 4, wherein the transparent and colored layers are extruded in pairs in step (a), and step (b) comprises trimming and fusing a plurality of pairs to form the billet. 제1항에 있어서, 단계(d)가 웨브를 확실히 접촉시키기 위해 충분한 압력을 가하면서 한쌍의 가열된 롤 사이에 상기 웨브를 통과시키는 것을 포함하는 방법.The method of claim 1, wherein step (d) comprises passing the web between a pair of heated rolls while applying sufficient pressure to securely contact the web. 상대적으로 높은 광학 농도를 가진 다수의 미세 루우버들을 삽입한 투명한 루우버 플라스틱 필름에 있어서, 상기 필름은 두개의 주요한 표면을 가지며, 그 표면들에 미세 루우버들이 말단화되어 있고, 파열 없이 그것의 루우버들을 따라 접히는 것을 특징으로 하는 투명한 루우버 플라스틱 필름.In a transparent louver plastic film incorporating a plurality of fine louvers having a relatively high optical density, the film has two major surfaces, the surfaces of which are terminated with fine louvers and without rupture thereof. A transparent louver plastic film, characterized by folding along louvers. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019910011663A 1990-07-11 1991-07-10 Manufacturing method of flexible louvered plastic film Withdrawn KR920002309A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US55155890A 1990-07-11 1990-07-11
US7/551,558 1990-07-11

Publications (1)

Publication Number Publication Date
KR920002309A true KR920002309A (en) 1992-02-28

Family

ID=24201758

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019910011663A Withdrawn KR920002309A (en) 1990-07-11 1991-07-10 Manufacturing method of flexible louvered plastic film

Country Status (4)

Country Link
EP (1) EP0466460A3 (en)
JP (1) JPH04232719A (en)
KR (1) KR920002309A (en)
CA (1) CA2046686A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1727635A4 (en) * 2004-03-25 2011-10-05 Shehwa P & C Co Ltd Privacy securing film
DE102004044364A1 (en) 2004-09-10 2006-03-16 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Halogen filament lamp/bulb for medium/high voltage ranges has a bulb with a lighting unit inside and a supply of current running through a nipping seal for sealing the bulb
US20150109674A1 (en) 2013-10-23 2015-04-23 Ronald Steven Cok Imprinted micro-louver structure
US20160124126A1 (en) 2014-10-29 2016-05-05 Sergiy Vasylyev Angular selective light control sheeting and method of making the same
CA3018516A1 (en) 2017-09-26 2019-03-26 Davis-Standard, Llc Casting apparatus for manufacturing polymer film

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE27616E (en) * 1971-02-01 1973-04-17 Protective device for fire hydrants
JPS61244546A (en) * 1985-04-22 1986-10-30 信越ポリマ−株式会社 Heat-proof glare-shield sheet
US4790972A (en) * 1986-05-16 1988-12-13 Rampart Packaging Inc. Method for stacking billets and thermoforming
US4921646A (en) * 1988-08-31 1990-05-01 Shell Oil Company Forming laminated billets from individual billets

Also Published As

Publication number Publication date
EP0466460A2 (en) 1992-01-15
JPH04232719A (en) 1992-08-21
EP0466460A3 (en) 1993-01-27
CA2046686A1 (en) 1992-01-12

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Legal Events

Date Code Title Description
PA0109 Patent application

Patent event code: PA01091R01D

Comment text: Patent Application

Patent event date: 19910710

PG1501 Laying open of application
PC1203 Withdrawal of no request for examination
WITN Application deemed withdrawn, e.g. because no request for examination was filed or no examination fee was paid